Biodegradable plastics are plastics that cause degradation by the action of microorganisms such as bacteria, molds (fungi) and algae present in nature. The ideal biodegradable plastic is a kind of macromolecule material which has excellent use performance, which can be completely decomposed by environmental microorganism after being discarded, and finally become inorganic component of nature in the carbon cycle.Biodegradable Bag
"Paper" is a typical biodegradable material, and "synthetic plastic" is a typical polymer material. Therefore, biodegradable plastics are both "paper" and "synthetic plastic" these two kinds of material properties of polymer materials.
Biodegradable plastics can be divided into two kinds of biodegradable plastics and destructive biodegradable plastics. Destructive biodegradable plastics currently include starch modified (or filled) polyethylene PE, polypropylene PP, polyvinyl chloride PVC, polystyrene PS and so on. Completely biodegradable plastics are made from natural macromolecules (such as starch, cellulose, chitin) or agricultural and sideline products by microbial fermentation or synthesis of biodegradable polymers such as thermoplastic starch plastic, aliphatic polyester, polylactic acid , Starch / polyvinyl alcohol, etc. are such plastic.
Biodegradable plastics based on natural substances such as starch are currently mainly used in the following products: polylactic acid (PLA), polyhydroxyalkanoate (PHA), starch plastic, bioengineered plastics, bio-general plastics (polyolefin and polychloride Ethylene).Biodegradable Bag
Biodegradable plastics because of good degradation, mainly for food soft and hard packaging materials, which is the stage of its largest application areas.
The main target market for biodegradable plastics is plastic packaging films, agricultural films, disposable plastic bags and disposable plastic cutlery. Compared to traditional plastic packaging materials, the cost of new degradable materials is slightly higher. However, with the enhancement of environmental awareness, people are willing to use the environment to protect the environment slightly higher than the new degradation of materials, environmental awareness to enhance the biodegradable new materials industry has brought great opportunities for development.
With the development of China's economy, the successful hosting of the Olympic Games, the Expo and many other shocked the world's large-scale activities, the world's cultural heritage and the location of national scenic spots to protect the needs of plastic pollution caused by environmental issues have become more and more attention at all levels of government Will control the white pollution as one of the key work.Biodegradable Bag